KEGG   REACTION: R04845
Entry
R04845                      Reaction                               
Name
3alpha-hydroxy-5beta-pregnane-20-one:NAD+ oxidoreductase (B-specific)
Definition
Pregnanolone + NAD+ <=> 5beta-Pregnane-3,20-dione + NADH + H+
Equation
Reaction class
RC00001  C00003_C00004
RC00144  C05479_C05480
Enzyme
Pathway
rn00140  Steroid hormone biosynthesis
rn01100  Metabolic pathways
Brite
Enzymatic reactions [BR:br08201]
 1. Oxidoreductase reactions
  1.1  Acting on the CH-OH group of donors
   1.1.1  With NAD+ or NADP+ as acceptor
    1.1.1.50
     R04845  Pregnanolone + NAD+ <=> 5beta-Pregnane-3,20-dione + NADH + H+
IUBMB reaction hierarchy [BR:br08202]
 1. Oxidoreductase reactions
  1.1.1.50
   R10422  3alpha-Hydroxysteroid <=> 3-Oxosteroid
    R04845  Pregnanolone <=> 5beta-Pregnane-3,20-dione
Orthology
K00037  3alpha-hydroxysteroid 3-dehydrogenase / chlordecone reductase [EC:1.1.1.50 1.1.1.357 1.1.1.225]

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